I have a totally stock 90 S2 cab that i use as a DD and love it. (207k miles) i just got an Aston Martin Vantage and I need just a little more giddy up from the S2. I do not know the particulars, but I believe there would have to be improvements to the ECU that could be flashed (upgraded) or newer more advanced ECU that would improve performance without shortening the engines life span. Any help would be greatly appreciated. BTW the 944 and the Aston have very similar handling characteristics, allowing one to drive pretty well with out hours of track time to gain some proficiency.